I have been having a problem recently when making new assemblies. If I decide to suppress some components, move around others, and constrain a part to a different part all of the sudden the assembly seems to lock up. Components with only 1 constraint (a flush, or concentric) will not be able to move in its other degrees of freedom that i know are available. When I click on the component and try to drag it an x comes up and the part wont move. Then I go to other parts of the assembly which were previously working and I havent touched and try to move it (a 4 bar linkage, cylinder slide) and those will no longer move either. In order to fix it I must delete all the constraints and reaply them. Only after taking every constrain off of a component is it free to move again. Does anyone have an idea why this may be happening?
Can you attach an assembly here that exhibits this behavior?
The CADWhisperer YouTube Channel
Thank you for your response. I found I had a bolt which had flown way out of the frame and still have constraints linked to it which was causing the rest of the assembly to over constrain. After searching through the browser for a while I found the bolt and deleted it which freed up the assembly. I kept wondering why is was zooming so far out every time I adjusted views.... thank you anyway.
Yep, One bad constraint freezes the whole assembly.
Test the dynamics of the assembly after adding new constraints, or after adding a small group of them, makes troubleshooting easy.
T.S.
The first thing I look for is my model "freezes" is a bad constraint or I have additional parts selected in the browser. If you are on IV2014, there is a new "sick contraint" tool on the toolbar which show bad constraints in the main model screen.